Shrink Fatten
Reference
Mode:
Edit Mode
Tool:
Toolbar ‣ Shrink/Fatten
Menu:
Mesh ‣ Transform ‣ Shrink Fatten
Shortcut:
Alt-S
This tool moved selected vertices/edges/faces along their own normal (perpendicular to the face), which, on “standard normal meshes”, will shrink/fatten them.
This transform tool does not take into account the pivot point or transform orientation.
Offset Even S, Alt
Scale the offset to give it a more even thickness. A greater offset factor is obtained vertices, which share faces, forming a more acute angle.